Copyright © 2011. Trimatiz Ltd. All right reserved. CONTACT Service & customization > Example of optical device > Optical switch with a thermal lens The single pole double throw (SPDT) optical switch has been designed and successfully assembled by Trimatiz.  Our in-house technologies included some simulations of the device, the evaluation of the optical switch and the  realization of the optimized device. Here is a diagram of the project’s processes from the customer’s request to the  delivery: